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Inhibition of Noncanonical Murine Double Minute 2 Homolog Abrogates Ocular Inflammation through NF-κB Suppression.
Fan, Yan; Zhang, Wei; Ni, Aiguo; Mahato, Biraj; Chavala, Sai H.
Afiliação
  • Fan Y; Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas.
  • Zhang W; Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas.
  • Ni A; Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas.
  • Mahato B; Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas.
  • Chavala SH; Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas. Electronic address: sai.chavala@unthsc.edu.
Am J Pathol ; 188(9): 2087-2096, 2018 09.
Article em En | MEDLINE | ID: mdl-30126549
Uveitis is estimated to account for 10% of all cases of blindness in the United States, including 30,000 new cases of legal blindness each year. Intraocular and oral corticosteroids are the effective mainstay treatment, but they carry the risk of serious long-term ocular and systemic morbidity. New noncorticosteroid therapies with a favorable side effect profile are necessary for the treatment of chronic uveitis, given the paucity of existing treatment choices. We have previously demonstrated that Nutlin-3, a small-molecule inhibitor of murine double minute 2 (MDM2) homolog, suppresses pathologic retinal angiogenesis through a p53-dependent mechanism, but the noncanonical p53-independent functions have not been adequately elucidated. Herein, we demonstrate an unanticipated function of MDM2 inhibition, where Nutlin-3 potently abrogates lipopolysaccharide-induced ocular inflammation. Furthermore, we identified a mechanism by which transcription and translation of NF-κB is mediated by MDM2, independent of p53, in ocular inflammation. Small-molecule MDM2 inhibition is a novel noncorticosteroid strategy for inhibiting ocular inflammation, which may potentially benefit patients with chronic uveitis.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Piperazinas / Regulação da Expressão Gênica / NF-kappa B / Proteína Supressora de Tumor p53 / Proteínas Proto-Oncogênicas c-mdm2 / Oftalmopatias / Imidazóis / Inflamação Tipo de estudo: Prognostic_studies Limite: Animals / Humans Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Piperazinas / Regulação da Expressão Gênica / NF-kappa B / Proteína Supressora de Tumor p53 / Proteínas Proto-Oncogênicas c-mdm2 / Oftalmopatias / Imidazóis / Inflamação Tipo de estudo: Prognostic_studies Limite: Animals / Humans Idioma: En Ano de publicação: 2018 Tipo de documento: Article